1 a : lacking a definite plan, purpose, or pattern b : made, done, or chosen at random <read random passages from the book>
2 a : relating to, having, or being elements or events with definite probability of occurrence < random processes> b : being or relating to a set or to an element of a set each of whose elements has equal probability of occurrence <a random sample> also : characterized by procedures designed to obtain such sets or elements < random sampling>
– ran · dom · ly adverb
– ran · dom · ness noun
synonyms RANDOM , HAPHAZARD , CASUAL mean determined by accident rather than design. RANDOM stresses lack of definite aim, fixed goal, or regular procedure <a random selection of books>. HAPHAZARD applies to what is done without regard for regularity or fitness or ultimate consequence <a haphazard collection of rocks>. CASUAL suggests working or acting without deliberation, intention, or purpose <a casual collector>.